if $.08 per kW-hr, we can find the electric bill for the month using the rule of three.
$.08 per kW-hr =
$0.08 ------------ 1 kW-hr
x --------------------- 8,284 kW-hr
Where x = (8,284 kW-hr*$0.08)/1 kW- hr
Then:
x= $662.72
Hence, the electric bill for the month of April was $662.72.